package com.zjzywl.smoke.util;
import java.text.DateFormat;
import java.text.FieldPosition;
import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MyDateFormat extends DateFormat{
    private DateFormat dateFormat;
    
    private SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
    public MyDateFormat(DateFormat dateFormat) {
        this.dateFormat = dateFormat;
    }
 
    @Override
    public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
        return dateFormat.format(date, toAppendTo, fieldPosition);
    }
 
    @Override
    public Date parse(String source, ParsePosition pos) {
 
        Date date = null;
 
        try {
 
            date = format1.parse(source, pos);
        } catch (Exception e) {
 
            date = dateFormat.parse(source, pos);
        }
 
        return date;
    }
 
    // 主要还是装饰这个方法
    @Override
    public Date parse(String source) throws ParseException {
 
        Date date = null;
 
        try {
            
            // 先按我的规则来
            date = format1.parse(source);
        } catch (Exception e) {
 
            // 不行，那就按原先的规则吧
            date = dateFormat.parse(source);
        }
 
        return date;
    }
 
    // 这里装饰clone方法的原因是因为clone方法在jackson中也有用到
    @Override
    public Object clone() {
        Object format = dateFormat.clone();
        return new MyDateFormat((DateFormat) format);
    }
 
}